Web development tools
Information is taken From Wikipedia, the free encyclopedia
Web development tools allow web developers to test and debug their code. They are different from website builders and IDEs in that they do not assist in the direct creation of a webpage, rather they are tools used for testing the user facing interface of a website or web application.
Web development tools come as browser add-ons or built in features in web browsers. The most popular web browsers today like, Google Chrome, Firefox, Opera, Internet Explorer, and Safari have built in tools to help web developers, and many additional add-ons can be found in their respective plugin download centers.
1 Web developer tools support
2 Common features
2.1 HTML and the DOM
2.2 Web page assets, resources and network information
2.3 Profiling and auditing
3 Extensions and plugins
4 See also
Web developer tools support
The web’s five most popular web browsers have support for web developer tools that allows web designers and developers to take a look at the make up of their pages. These are all tools that are built into the browser and do not require additional modules or configuration.
Google Chrome – Web Developer Tools
Internet Explorer – F12 Web Developer Tools (As of version 8)
Safari – Safari Web Development Tools (As of version 3)
Firefox – F12 Web Console / Browser Console (since Firefox 4)(many addons also exist, including Firebug)
Opera – Opera Dragonfly
The built-in web developer tools in the browser are commonly accessed by hovering over an item on a webpage and selecting the “Inspect Element” or similar option from the context menu. Alternatively the F12 key tends to be another common shortcut.
HTML and the DOM
HTML and DOM viewer and editor is usually commonly included in the built in web development tools. The difference between the HTML and DOM viewer, and the view source feature in web browsers is that the HTML and DOM viewer allow you to see the DOM as it was rendered in addition to allowing you to make changes to the HTML and DOM and see the change reflected in the page after the change is made.
In addition to selecting and editing, the HTML elements panels will usually also display properties of the DOM object, such as display dimension, and CSS properties.
Web page assets, resources and network information
Web pages typically load and require additional content in the form of images, scripts, font and other external files. Web development tools also allow developers to inspect resources that are loaded and available on the web page in a tree-structure listing.
Web development tools also allow developers to view information about the network usage, such as viewing what the loading time and bandwidth usage are and which HTTP headers are being sent and received.
Profiling and auditing
Profiling allows developers to capture information about the performance of a web page or web application. With this information developers can improve the performance of their scripts. Auditing features may provide developers suggestions, after analyzing a page, for optimizations to decrease page load time and increase responsiveness. Web development tools typically also provide a timeline features provides a record of the time it takes to render the page, memory usage, and the types of events which are taking place.
These features allow developers to optimize their web page or web application.
Extensions and plugins
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